How do I get a USF fee waiver?

I'm curious to know how one might go about obtaining a USF fee waiver. Is there a specific application process that needs to be followed? Are there certain criteria or qualifications that must be met in order to be eligible for such a waiver? And if so, where can I find more information about these criteria and the application process? I'm eager to learn more about this opportunity and how it can potentially benefit me.